Haptic perception of texture gradients.
Identifieur interne : 001F19 ( PubMed/Corpus ); précédent : 001F18; suivant : 001F20Haptic perception of texture gradients.
Auteurs : E. Holmes ; B. Hughes ; G. JanssonSource :
- Perception [ 0301-0066 ] ; 1998.
English descriptors
- KwdEn :
- MESH :
- physiology : Stereognosis.
- physiopathology : Blindness.
- Adult, Female, Humans, Male, Psychological Tests, Sensory Aids.
Abstract
To pick up 3-D aspects of pictures is arguably the most difficult problem concerning tactile pictorial perception by the blind. The aim of the experiments reported was to examine the potential utility of texture gradients in this context. Since there is no theoretical basis for predicting absolute values of 3-D properties from 2-D patterns read by the finger pads, the abilities of participants to perceive gradients lying between known maxima and minima were assessed. Experiment 1 involved blindfolded sighted participants making verbal magnitude estimations of texture-gradient magnitudes corresponding to plane surfaces at different slants. In experiment 2 the participants' task was to orient a surface at a slant corresponding to the texture gradients depicted tactually, and experiment 3 required early-blind participants to attempt the same task. The results revealed that participants can scale the magnitudes of texture gradients with high precision and that they can also accurately produce surface slants from depictions, providing the extreme conditions are clearly defined and there are opportunities for learning. Texture gradients appear as informative to the blind as they do to the sighted. To what extent these data can be generalised to other gradients and textures or to other projections of 3-D scenes remains to be investigated.
PubMed: 10209637
Links to Exploration step
pubmed:10209637Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Haptic perception of texture gradients.</title><author><name sortKey="Holmes, E" sort="Holmes, E" uniqKey="Holmes E" first="E" last="Holmes">E. Holmes</name><affiliation><nlm:affiliation>Department of Psychology, Uppsala University, Sweden.</nlm:affiliation></affiliation></author><author><name sortKey="Hughes, B" sort="Hughes, B" uniqKey="Hughes B" first="B" last="Hughes">B. Hughes</name></author><author><name sortKey="Jansson, G" sort="Jansson, G" uniqKey="Jansson G" first="G" last="Jansson">G. Jansson</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1998">1998</date><idno type="RBID">pubmed:10209637</idno><idno type="pmid">10209637</idno><idno type="wicri:Area/PubMed/Corpus">001F19</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Haptic perception of texture gradients.</title><author><name sortKey="Holmes, E" sort="Holmes, E" uniqKey="Holmes E" first="E" last="Holmes">E. Holmes</name><affiliation><nlm:affiliation>Department of Psychology, Uppsala University, Sweden.</nlm:affiliation></affiliation></author><author><name sortKey="Hughes, B" sort="Hughes, B" uniqKey="Hughes B" first="B" last="Hughes">B. Hughes</name></author><author><name sortKey="Jansson, G" sort="Jansson, G" uniqKey="Jansson G" first="G" last="Jansson">G. Jansson</name></author></analytic><series><title level="j">Perception</title><idno type="ISSN">0301-0066</idno><imprint><date when="1998" type="published">1998</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Blindness (physiopathology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Psychological Tests</term><term>Sensory Aids</term><term>Stereognosis (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Stereognosis</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Blindness</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Female</term><term>Humans</term><term>Male</term><term>Psychological Tests</term><term>Sensory Aids</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To pick up 3-D aspects of pictures is arguably the most difficult problem concerning tactile pictorial perception by the blind. The aim of the experiments reported was to examine the potential utility of texture gradients in this context. Since there is no theoretical basis for predicting absolute values of 3-D properties from 2-D patterns read by the finger pads, the abilities of participants to perceive gradients lying between known maxima and minima were assessed. Experiment 1 involved blindfolded sighted participants making verbal magnitude estimations of texture-gradient magnitudes corresponding to plane surfaces at different slants. In experiment 2 the participants' task was to orient a surface at a slant corresponding to the texture gradients depicted tactually, and experiment 3 required early-blind participants to attempt the same task. The results revealed that participants can scale the magnitudes of texture gradients with high precision and that they can also accurately produce surface slants from depictions, providing the extreme conditions are clearly defined and there are opportunities for learning. Texture gradients appear as informative to the blind as they do to the sighted. To what extent these data can be generalised to other gradients and textures or to other projections of 3-D scenes remains to be investigated.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">10209637</PMID><DateCreated><Year>1999</Year><Month>05</Month><Day>06</Day></DateCreated><DateCompleted><Year>1999</Year><Month>05</Month><Day>06</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0301-0066</ISSN><JournalIssue CitedMedium="Print"><Volume>27</Volume><Issue>8</Issue><PubDate><Year>1998</Year></PubDate></JournalIssue><Title>Perception</Title><ISOAbbreviation>Perception</ISOAbbreviation></Journal><ArticleTitle>Haptic perception of texture gradients.</ArticleTitle><Pagination><MedlinePgn>993-1008</MedlinePgn></Pagination><Abstract><AbstractText>To pick up 3-D aspects of pictures is arguably the most difficult problem concerning tactile pictorial perception by the blind. The aim of the experiments reported was to examine the potential utility of texture gradients in this context. Since there is no theoretical basis for predicting absolute values of 3-D properties from 2-D patterns read by the finger pads, the abilities of participants to perceive gradients lying between known maxima and minima were assessed. Experiment 1 involved blindfolded sighted participants making verbal magnitude estimations of texture-gradient magnitudes corresponding to plane surfaces at different slants. In experiment 2 the participants' task was to orient a surface at a slant corresponding to the texture gradients depicted tactually, and experiment 3 required early-blind participants to attempt the same task. The results revealed that participants can scale the magnitudes of texture gradients with high precision and that they can also accurately produce surface slants from depictions, providing the extreme conditions are clearly defined and there are opportunities for learning. Texture gradients appear as informative to the blind as they do to the sighted. To what extent these data can be generalised to other gradients and textures or to other projections of 3-D scenes remains to be investigated.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Holmes</LastName><ForeName>E</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Department of Psychology, Uppsala University, Sweden.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hughes</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Jansson</LastName><ForeName>G</ForeName><Initials>G</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>ENGLAND</Country><MedlineTA>Perception</MedlineTA><NlmUniqueID>0372307</NlmUniqueID><ISSNLinking>0301-0066</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001766">Blindness</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000503">physiopathology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011581">Psychological Tests</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012682">Sensory Aids</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013236">Stereognosis</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1999</Year><Month>4</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1999</Year><Month>4</Month><Day>21</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1999</Year><Month>4</Month><Day>21</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">10209637</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/PubMed/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001F19 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/PubMed/Corpus/biblio.hfd -nk 001F19 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= PubMed
|étape= Corpus
|type= RBID
|clé= pubmed:10209637
|texte= Haptic perception of texture gradients.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/PubMed/Corpus/RBID.i -Sk "pubmed:10209637" \
| HfdSelect -Kh $EXPLOR_AREA/Data/PubMed/Corpus/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |